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AM3517 booting error about display

Other Parts Discussed in Thread: AM3517

I'm trying to get started with the AM3517 and the latest PSP from TI. I connected LCD display with AM3517.

When I use old PSP, the booting log can be found on LCD. But when I use the linux2.6.32 of AM32x-OMAP35x-PSP-SDK-03.00.01.06.tgz, there is some booting error messages, and LCD displays nothing:

omapfb omapfb: no displays
omapfb omapfb: failed to setup omapfb
omapfb: probe of omapfb failed with error -22
davinci_emac_probe: using random MAC addr: f2:6d:cb:0e:5b:99
emac-mii: probed
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
omap_vout omap_vout: no displays
omap_vout: probe of omap_vout failed with error -22

Thanks in advance for any help.

aragon